- a person or company that underwrites policies of insurance or carries on insurance as a business.
- a person or company that underwrites shares or bonds.
- a person or organization that finances something; backer: the underwriters of the ballet company.
- a person or enterprise that underwrites public issues of shares, bonds, etc
- a person or enterprise that underwrites insurance policies
- an employee or agent of an insurance company who assesses risks and determines the premiums payable